Composition shingle



June 18, 1929. N, P* HARSHBERGER 1,717,603

y COMPOSTTTON SHINGLE Filed Aug. 28, 1926 4T K L L@ f L L L 1l f 4J P U r LV Lr r I HFzyl 8^ J 9 J J 10 j 4 bg l l f 7 V F f Fz'jz E i f 10 F' LL Q94 ag d -9 fj l/Vl/ENTOR Y /V0rman P/anshbercser Paieiae'd June 1s, 1929.

PATENT ormoni NORMAN P. HARSHBERGER, or CHICAGO, ILLINOIS.

oMPosrrroN SHINGLE.

4Application tiled August 28, 1926. Serial No.'132,121.

This invention relates to. composition shingles. and vhas for its object providing a shingle .the lap portion of which is locked down by other shingles, and one which can be conveniently cut from sheets of shingle material without waste. A further object of the invention is toprovide such shingles which present a novel andpleasing appearance on the roof when assembled.

Of the accompanying drawings Fig. 1 is a plan viewof the shingles which embody lthe features of vmyinvention',l as they appear when assembled on the roof; vFig. 2 is a plan view of a sheet of 'shingle -material showing how the shingles are cut therefrom; Fi 3 is a plan view of asingle shingle; anFig. 4 is a sectional view along the line 4 4 of Fig..1.

The shingles 5 'comprise a body portion 6,

a shank portion 7,` and a lap portion 8.

Formed in the .lap portion isa locking lug 9 and Vformed. in the shank portions .are aligning notches or fingers or guides 10. When the shingles are assembled on the roof they are laid in rows 11, 12 and 13, with the shank 7 of theleft-hand shingle passing underthe Vbodyportion 6 of the right-hand shingle of the same row; and with the guides 10 of the'shank aligned with the lapping edge of the overlying shingle of the same row.

Each of the shingles has a lap portion 8 which is locked down bypassing the lug 9 of the lap under the left hand end of the underlying shingle in the adjacent row of shingles.- The lefthand ends of the shingles overlap and hold down the right-hand ends of the shingles of the same row; and the underlying shingles of one row hold down `the` lower edges of the shingles of the adjacent overlapping row, by means of the lug 9, which is fixed to the overlying shingles.

, It will be seen that, as the shingles are cut' from the sheet and then laid on the roof, one half of the Shanks will have thejfingers 4 and recesses 10 extending upwardly, and the other half will have them extending down-'- wardly. But obviously this is immateriall as" they are merely guides for aligning the shingles, in each row, with each other. The shingles are positioned with reference to the shingles of the adjacent rows by the position of the lugs 9, and the ends 14. In this man ner the shinglesv are quickly and accurately positioned and are also so interlocked as to prevent warping, or bending up otherwise, of the lap portions thereof. Obviouslyfalso the shingles-may be. cut with the lugs 9 on the opposite side of the body portion so that the shank 7 may be extended towards the left instead of towards the right.

I claim as my invention:

1. A rectangularly-shaped shingle, a rectangularly-shaped shank projecting from the' central portion of one edgeof lthe shingle, and alug fixed to an adjacent edge of the shingle, the -outer. edge of the lug being in line with the associated edge of the shingle. Y

2. A shingle according to claim 1 in which the width of said shank is vone-half the length of the side from which it projects.

' 3. A substantially square-shaped shingle, a substantially square-shaped shank projecting from the central portion of one edge of said shingle, the -area of`the shank being, substantially one-fourth of the area of the remainder' of the shingle, and a slit projecting inwardly and angularly from'the adjacent edge of the shingle.

h In testimony whereof, Iehereunto set my and.

NORMAN P. HARSHBERGER. 

